Sash-lock



J. G. KASTLER.

SASH LOCK.

APPLICATION FILED JUNE 17, 1918.

Patented Nov. 4, 1919.

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ran snares PATENT ermine.

:rosnrn G. KASTLER, or DETROIT, MICHIGAN.

SASH-LOCK.

Specification of Letters Patent.

Patented Noted, 1919.

Application filed. June 17, 1918. Serial No. 240,295.

pertains to make and use the same, reference being had to the accompanying drawings, which forma part of this specification.

This invention relates to sash locks, and its object is a safety'lock for windows that is simple and inexpensive in character having the adaptation to securely lock the upper and lower sashof a window in any predetermined relationship either open or closed to prevent movement of the sash from the outside and thusenabling the sash to be locked in open relationship without possibility of the window being opened to further extent. The novel feature of the invention is involved in the means employed to securely fasten the window that on an attempted movement of the windows when the device is in locked position tends to bind the sashto an increasing extent and thus prevent movement thereof in the frame when locked. These objects and the several novel features of the invention in its pre ferred form are hereinafter more fully described and claimed and shown in the accompanying drawings in which Figure 1 isv an elevation partly in sectiontaken on line 00 m of Fig. 2, showing my improved sash lock in position.

Fig. 2 is a longitudinal section of the device on line y y of Fig. 1, showing the locking lever.

Fig. 3 is a side elevation thereof.

Fig. 4 is a plan view. 7

The device isadapted for use on the meeting rail of the sash, it being attached as shown in Fig. 1 on the top of the meeting rail 1. The device consists of a base member 2 and a case or cap member 3 secured thereto preferably by means of lugs 4 on the cap member extending through apertures provided therefor in the base member, the ends of the lugs being peened or headed to retain the parts together. The cap member 3, as shown particularly in Fig. 3, is provided with an aperture 5 through which extends an end of the operating lever 6. This lever is pivoted as shown in Fig. 2 on a pin 7 extending through the cap and into the base member as shown. The inner end of'the lever terminates in an upwardly extending rounded portion 8 shown particularly in Figs. 1 and 2. Pivotally mounted in the casing, by means of a pin 9 extending through opposite walls of the case, is the binding or wedging lever 9 This binding lever terminates within the casing in an arcuate end 10 engaging the rounded end 8 of the lever 6. The "lever extends out- 'wardly through openings 11 in the case and has a terminal portion 12 extending toward and nearly in contact with the vertical side bar 13 of the upper sash. This terminal portion 12 is recessed to receive a rubber insert 14 that is compressible in character and the said end of the lever is also provided with a pointed sash engaging portion 15.

In the position of parts shown in full lines in Fig. l the lever is in what I have termed normal position with the rubber insert just engaging the face ofthe sash bar 13. In this position of parts the sash may be raised or lowered without inconvenience but prefer-ably, when it is desired to unlock the sash, the end of the lever 8 is turned to the right of the Fig. l and,' by reason .of the engagement of the said end 8 with the arcuate portion 10 of the lever 9, the end 12 is raised to position shown by dotted lines at out of contact with the face of the sash bar. To look the sash the lever 8 is turned to the left of Fig. 1 which forces the lever 9 to position shown by dotted lines o inthe figure forcibly compressing the rubber insert and bringing the point 15 practically to contact with the face of the sash although preferably not quite in contact, the projecting of the rubber insert under the condition stated holding the point out of contact with the sash. With the lever in the position shown by dotted lines 6 if it is attempted to raise the sash bar 1 such movement tends to relatively' move the lever 9 downward which tends to force the sash apart and force the point into the sash bar, as will be understood.

It is to be noted that the entire lock is carried on the sash bar 1 and that the lever 9 and rubber insert carried thereby may engage the face of the upper sash 13 at any point of its length. It is therefore evident that the sash may be locked in an open position and when so locked in such position it is impossible to draw the upper sash 13 downward to increase the opening at the sliding windows, and that, by arranging the device with a lever of the character shown, the pressure exerted on the lever has no tendency to pull the fastening screws longitudinally out of the sash bars as with the other types of fastening devices but that pressure is exerted at right angles to the screws and therefore asubstantial fastening is provided very readily operated by means of a push lever and easily and readily mounted.

Having thus briefly described my invention, what I claim is A,

l. A sash lock comprising the combination with a pair of sash members vertically slid-able in parallel relation, of a base member adapted to be secured to the upper cross bar of the lower sash member, a wedge mem-' said arcuate end 'of the wedge member,

movement of the operating lever in one dr rection and engagement thereby with one end of the arcuate part of the wedge member forcing the same into wedging relation with the said upper sash and movement of theoperating lever in the opposite direction correspondingly disengaging the wedge member.

2. A look for a pair of sash members rela tively movable in vertical relation consisting of a hollow case adapted to be attached to the lower sash member and having an open ing through the upper surface, a wedging lever adapted for engagement with the upper sash member pivotally mounted in the case and extending through the said open ing, said wedging lever terminating within the case in an arcuate end, positioned in the plane in which the lever swings, an operating lever pivotally mounted in the case having one end extending outwardly through the case and the other-end engaging the said arcuate end of the wedging lever.

3. A lock fora pair o'tsash members relatively movable in parallel relation comprising a base member adapted to be secured to the meeting rail of one of thesash members, a wedging member pivoted in the base to swing in a plane at a right angle to the plane of the sash toward or from wedging relation with the'other sash member, the said wedging member terminating within the case below the pivot point in two ends or arms, an operating lever pivoted to swing in a' plane at a right angle to the'plane'ot movement of the wedginglever and having an end extending between the said arms or ends of the wedging lever whereby movement in one direction disengages the wedging member and movement in the other causes wedging engagement thereof with the sash.

'In testimony whereof I sign this specification.

Josnrn e. KASTLER.

copies of t is patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. r 1 

